SPY option trades by size, Sep 10 2026
Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-09-17, from The 390 Rule in Options: Professional Status.
| bucket | trade_count | share_of_trades_pct |
|---|---|---|
| 1 contract | 642437 | 47.8 |
| 2 to 5 contracts | 410232 | 30.5 |
| 6 to 10 contracts | 129068 | 9.6 |
| 11 to 50 contracts | 132413 | 9.9 |
| 51 or more contracts | 29028 | 2.2 |
- Rows × columns
- 5 × 3
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
bucket |
text | 5 distinct values | |
trade_count |
number | 29,028 to 642,437 | count |
share_of_trades_pct |
number | 2.2 to 47.8 | percent |
Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.
Run it yourself
This is the exact query behind the result above. Change a ticker, a date or a column and run it against the warehouse — no account, no key. The no-signup tier is smaller than the one this page was computed on; a query that reaches past it comes back saying which plan runs it.
SELECT
bucket,
trade_count,
round(100 * trade_count / sum(trade_count) OVER (), 1) AS share_of_trades_pct
FROM
(
SELECT
multiIf(size = 1, 1, size <= 5, 2, size <= 10, 3, size <= 50, 4, 5) AS bucket_rank,
multiIf(bucket_rank = 1, '1 contract',
bucket_rank = 2, '2 to 5 contracts',
bucket_rank = 3, '6 to 10 contracts',
bucket_rank = 4, '11 to 50 contracts',
'51 or more contracts') AS bucket,
count() AS trade_count
FROM global_markets.options_trades
WHERE underlying_symbol = 'SPY'
AND sip_timestamp >= toDateTime('2026-09-10 13:30:00', 'UTC')
AND sip_timestamp < toDateTime('2026-09-10 20:30:00', 'UTC')
GROUP BY bucket_rank, bucket
)
ORDER BY bucket_rank
Use dis data for your AI assistant
E go open ready to query, with dis page data. Free, no account.